Open-head blade anvil



H. R. BLISS July 8, 1930.

OPEN HEAD BLADE ANVIL Filed Dec. 29, 1928 2 Sheets-Shet vl INVENTOR. Herbert 7R B11156 ATTORNEY.

July 8, 1930. H. R. BLISS 1,770,349

OPEN HEAD BLADE ANVIL Filed Dec 29, 1928 2 Sheets-Sheei 2 IN V EN TOR.

fierbert 7? 731566 A TTORNE Y.

Patented July 8, 1930 UNITED STATES,

PATENT OFFICE HERBERT R. BLISS, OF NIAGARA FALLS, NEW YORK, ASSIGNOR TO H. R. BLISS COM- PANY, INC, 013 NIAGARA FALLS, NEW YORK, A CORPORATION OF NEW YORK OPEN-HEAD BLADE ANVIL Application filed December 29, 1928. Serial No. 329,179.

This invention has to do with the stitching together of overlapping parts of flaps of fiber board containers, shipping cases, or the like. The invention is concerned principally with the provision of an anvil against which the stitches are thrown by a stitching head so as to clinch the stitches to secure the overlapping. parts or flaps together. The anvil contemplated is one which is of the socalled open-head type which permits the container, whether it be collapsed, or fully set up, or packed with articles, to be passed along near a stitching head with a movement in one direction for the taking of the stitches and which permits the container to continue on in this movement after all the stitches are taken so that it is not necesssary to remove thecontainer by Withdrawing the same by reverse movement. The anvil of the present invention also embodies the features of the so-called blade anvil, in that the anvil is relatively thin so as to nicely underlie the flaps which are to be stitched together but which is sufficiently rigid to withstand the impact delivered to it upon the throwing and clinching of the stitch without the aid of any additional or outside support.

Fig; 1 is a side elevational view illustrating the stitching head of a stitching machine showing the anvil attached thereto, and illustrating the manner in which a container may be moved by the stitching head.

Fig. 2 is a frontelevational view of the same.

Fig.3 is a perspective view of the open head anvil. Fig. 4 is an enlarged detail taken on line 4-4 of Fig. 3.

Fig. 5 is a detail section taken on line 5-5 of Fig. 3.

Fig. 6 is a view similar toFig. 1, illustrating how a seam can be taken in a collapsed container.

The open-head blade anvil is shown 1n Fig. 3, and it includes a support 1 which-is ture- For this purpose the support may be provided with elongated openings 2.

This support carries a blade anvil 3 which includes a laterally extending part 4, a lengthwise extending part 5 which may be somewhat downwardly inclined, and an inwardly extending part 6. The part 6 is de signed to underlie the stitching head and to receive the impact, and for this purpose it may be provided with a stitching-clinching device 7 which may be secured in a removable manner as by means of one or more screws 8.

This part 3 therefore constitutes in efiect a blade anvil, in that it is supported at one end and is adapted to receive the impact of the stitching mechanism remote from the supported end. The part 3 is, as shown, of relatively thin material, and while it may flex somewhat under the impact of a stitch clinchmg operation, it is sufficiently rigid to resist the impact in order toclinch the legs of the stitch.

There is a guide device 10' carried by this blade anvil. This guide device may be either integral with the blade or it may be a separate plate welded to the blade along lines 11, 12, and 13 (Fig. 5). This guide device is spaced below the blade; that is to say it lies below the laterally extending part 4 of the blade, but merges to the impact receiving end 6 of the blade. The point of connection 13 between the'guide and blade forms a vertical wall portion which effects the spacing between the blade and guide. Preferably this guide has a flanged part 14 which merges into the Wall formed at 13.

As shown in Fig. 5, the guide part 1 may be provided with openings 15 so that screws may be used for securing the blade anvil to the support 1.

As set forth above,'the support is designed to be connected to some supporting means and for this. purpose the support may be bolted to a stitcher head 20 after the manner shown in Figs. 1 and 2 by means of mahead is shown in Figs. 1 and 2. The container 22 may be moved along on a suitable conveyor which may be provided with rollers 23, and the container may be moved by hand or by automatically acting means.

This container has two overlapping flaps 26 and 27 which are to be'stitched together. The flap 26 rides under the laterally extending portion 4 of the blade anvil, and in the space between this portion of the blade anvil and the guide part 10. The part let prop-- erly guides the flap 26 as the box moves from right to left (viewing Fig. 2) and the flap 26 is guided up over the impact receiving end 6 of the blade anvil. The flap'27 rides over the horizontal portion 4: of the blade and comes into contact in overlapping relation with the flap 26 as the two approximate a point over the impact receiving end 6. At the proper time the stitching mechanism is operated so that the head 20 throws a stitch 30 and the legsthereof are clinched by the part 7 and the impact is supported entirely by the blade anvil 3. It will be readily apparent how, after the flaps 26 and 27 have been stitched with the proper number of stitches, the box is free to move on away from the stitching mechanism in the direction in which it was fed during the taking of the stitches.

This. open-head blade anvil is advantageous for the sealing of boxes or shipping containers which are loaded. Inasmuch as the blade anvil withstands the impact delivered to it from the securing of the stitch, no 1 additional support from the anvil isneeded.

Accordingly, the box may be loaded with light articles, heavy article, or fragile articles, and no impact or blow is delivered to the articles.

The anvil, however, is equally applicable for placing a row of stitches in overlapping parts of a collapsed container. This is illustrated in Fig. 6 where the. container is collapsed and it has overlapping-parts 31 and 32 which are to be stitched together. This illustration depicts the'manner in Whicha so called manufacturersseam is taken at the time thecontainer is manufactured. This seam is taken in the container when the container is collapsed and in flat form and the Y containers are shipped in this manner and are seam can be taken at other places other than along the center line of the top.

Claims: I

1. An open head blade anvil for use with a wire stitching machine for stitching overlapping fiaps of fiber board containers or the like, comprising a supporting member, a blade anvil member supported at one end by the support and adapted to receive the stitchin'g impact near its opposite end, said blade anvil being,s ufliciently rigid to resist said impact and clinch the stitch, said blade anvil being arranged to permit on flap to pass thereover, and to permit anothe flap to pass thereunder at a point adjacent the support, but which passes over the blade anvil at the point of stitching, and a guide member carried by the blade anvil and spaced below the same, for guiding the second mentioned flap under a portion of the. blade anvil, and

then up over the impact receiving end of the blade anvil.

2. An open head blade anvil for use with a wire stitching machine for stitching overlapping flaps of a fiber board container or the like, comprising a supporting members, a blade anvil having a horizontally disposed part connected to the support, said blade anvil having second substantially hor zontally disposed part extending at right angles to the first, and an end part which extends m- I wardly in substantial alignment with the support, means on this end part for clinching a stitch, the said blade anvil being sufliciently rigid to resist the impact of the st1tch ing operation, and a. guide member carried by the blade anvil which is positioned hor1zontally and which is spaced below the blade anvll, said blade anvil being arranged to permit one flap to'pass thereover and the guide member being arranged to guide the other flap under the supported end of the anvil and over the impact receiving end.

In testimony whereof I aifix my signature.

HEBBERT R. BLISS.

suitable conveyor after the manner illustratdown the side of the box, while the sealing 

